News Headlines
Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

0°F

-18°C

Humidity 38%
Wind Speed Calm
Barometer 30.58 in
Dewpoint -20°F (-29°C)
Visibility 10.00 mi
Last update 23 Jan 6:15 pm EST
Extended Forecast for

3 Miles SE Casco MI

Cold Weather Advisory January 23, 06:21pm until January 24, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 23, 06:21pm until January 24, 10:00am

    NOW until 10:00am Sat

    Cold Weather Advisory

  • Tonight

    Low: -11 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds and cold, with a high near 7. Wind chill values as low as -13. Calm wind becoming west around 5 mph.

    High: 7 °F

    Cold

  • Saturday Night

    Saturday Night: A chance of snow after 1am.  Mostly cloudy, with a temperature falling to near 4 by 10pm, then rising to around 8 during the remainder of the night. Wind chill values as low as -3. Calm wind becoming east northeast around 6 mph after midnight.  Chance of precipitation is 30%.

    Low: 4 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow.  High near 17. Wind chill values as low as -2. East northeast wind 6 to 10 mph.  Chance of precipitation is 90%. New snow accumulation of around 3 inches.

    High: 17 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am.  Cloudy, with a low around 11. North northeast wind around 9 mph.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 11 °F

    Snow Likely

  • Monday

    Monday: A chance of snow before 1pm.  Partly sunny, with a high near 17. Chance of precipitation is 30%.

    High: 17 °F

    Chance Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 19.

    High: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around -11. Wind chill values as low as -18. West northwest wind 5 to 9 mph becoming calm after midnight.
Saturday
Increasing clouds and cold, with a high near 7. Wind chill values as low as -13. Calm wind becoming west around 5 mph.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a temperature falling to near 4 by 10pm, then rising to around 8 during the remainder of the night. Wind chill values as low as -3. Calm wind becoming east northeast around 6 mph after midnight. Chance of precipitation is 30%.
Sunday
Snow. High near 17. Wind chill values as low as -2. East northeast wind 6 to 10 mph. Chance of precipitation is 90%. New snow accumulation of around 3 inches.
Sunday Night
Snow likely, mainly before 1am. Cloudy, with a low around 11. North northeast wind around 9 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Monday
A chance of snow before 1pm. Partly sunny, with a high near 17. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Mostly cloudy, with a high near 19.
Tuesday Night
Partly cloudy, with a low around 2.
Wednesday
Partly sunny, with a high near 16.
Wednesday Night
Mostly cloudy, with a low around 2.
Thursday
Partly sunny, with a high near 16.
Thursday Night
Partly cloudy, with a low around 1.
Friday
Partly sunny, with a high near 17.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Casco MI
 42.74°N 82.64°W (Elev. 623 ft)
4:13 pm EST Jan 23, 2026
6pm EST Jan 23, 2026-6pm EST Jan 30, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database